T = int(input())
p = T in range(1, 101)
if p:
    for i in range(T):
        a, b = map(int, input().split())
        p1 = all(x in range(101) for x in [a, b])
        print(sum((a, b)) if p1 else "请满足0≦a,b≦100的正整数")
else:
    print("请满足1≦T≦100的正整数")